Polar's new Grit X watches looks to take on the Garmin Fenix | Tom's Guide
Garmin fēnix 6 PRO, Multisport GPS Smartwatch, Advanced Health and Training Features, Ultratough Design Features, Up to 14 days battery life, Black : Amazon.co.uk: Electronics & Photo
The difference in VO2 max from my Garmin Fenix 6 and Polar H10 is… surprising. : r/Polarfitness
Polar Grit X v Garmin Fenix 6: Big name outdoor watches compared - Wareable